| // Copyright 2012 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Check that `&mut` objects cannot be borrowed twice, just like |
| // other `&mut` pointers. |
| |
| trait Foo { |
| fn f1(&mut self) -> &(); |
| fn f2(&mut self); |
| } |
| |
| fn test(x: &mut Foo) { |
| let _y = x.f1(); |
| x.f2(); //~ ERROR cannot borrow `*x` as mutable |
| } |
| |
| fn main() {} |
